public class Test {
    public static void main(String[] args) {
        BinaryTree binaryTree = new BinaryTree();
        BinaryTree.TreeNode root = binaryTree.createTree();

        binaryTree.preOrder(root);
        System.out.println();
        binaryTree.inOrder(root);
        System.out.println();
        binaryTree.postOrder(root);
        System.out.println();
        binaryTree.size(root);
        System.out.println("节点的个数："+BinaryTree.countSize);

        int nodeCount = binaryTree.nodeSize(root);
        System.out.println("节点的个数2："+nodeCount);
    }
}
